//
//  VistorView.swift
//  weibo 666
//
//  Created by mac on 15/11/6.
//  Copyright © 2015年 mac. All rights reserved.
//

import UIKit


class VistorView: UIView {
    
    func setUpInfo(imageName:String?, title:String){
        messageLabel.text = title
        
        guard let imgName = imageName else{
            startAnim()
            return
        }
        
        iconView.image = UIImage(named: imgName)
        homeIconView.hidden = true
        
        sendSubviewToBack(maskIconView)
    }
    
    /// 开启首页转轮动画
    private func startAnim() {
        
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        
        anim.toValue = 2 * M_PI
        anim.repeatCount = MAXFLOAT
        anim.duration = 20
        
        // 用在不断重复的动画上，当动画绑定的图层对应的视图被销毁，动画会自动被销毁
        anim.removedOnCompletion = false
        
        // 添加到图层
        iconView.layer.addAnimation(anim, forKey: nil)
    }
    
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        setUpUI()
    }

    required init?(coder aDecoder: NSCoder) {
//        fatalError("init(coder:) has not been implemented")
        super.init(coder: aDecoder)
        setUpUI()
    }
    
    
    // MARK: - 懒加载控件
    /// 图标，使用 image: 构造函数创建的 imageView 默认就是 image 的大小
    private lazy var iconView: UIImageView = UIImageView(imageName: "visitordiscover_feed_image_smallicon")
    
    /// 遮罩图像
    private lazy var maskIconView: UIImageView = UIImageView(imageName: "visitordiscover_feed_mask_smallicon")
    
    /// 小房子
    private lazy var homeIconView: UIImageView = UIImageView(imageName: "visitordiscover_feed_image_house")
    
    /// 消息文字
    private lazy var messageLabel: UILabel = UILabel(title: "关注一些人，回这里看看有什么惊喜关注一些人，回这里看看有什么惊喜")
    /// 注册按钮
    lazy var registerButton: UIButton = UIButton(title: "注册", color: UIColor.orangeColor(), imageName: "common_button_white_disable")
    
    /// 登录按钮
    lazy var loginButton: UIButton = UIButton(title: "登录", color: UIColor.orangeColor(), imageName: "common_button_white_disable")
    
}


extension VistorView {
    
//    设置界面UI
    private func setUpUI() {
        
//        添加控件
        addSubview(iconView)
        addSubview(maskIconView)
        addSubview(homeIconView)
        addSubview(messageLabel)
        addSubview(loginButton)
        addSubview(registerButton)
        
        
//        设置自动布局
        for v in subviews {
            v.translatesAutoresizingMaskIntoConstraints = false
        }
        
        // 1> 图标
        addConstraint(NSLayoutConstraint(item: iconView, attribute: .CenterX, relatedBy: .Equal, toItem: self, attribute: .CenterX, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: iconView, attribute: .CenterY, relatedBy: .Equal, toItem: self, attribute: .CenterY, multiplier: 1.0, constant: -60))
        // 2> 小房子
        addConstraint(NSLayoutConstraint(item: homeIconView, attribute: .CenterX, relatedBy: .Equal, toItem: iconView, attribute: .CenterX, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: homeIconView, attribute: .CenterY, relatedBy: .Equal, toItem: iconView, attribute: .CenterY, multiplier: 1.0, constant: 0))
        // 3> 消息文字
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: .CenterX, relatedBy: .Equal, toItem: iconView, attribute: .CenterX, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: .Top, relatedBy: .Equal, toItem: iconView, attribute: .Bottom, multiplier: 1.0, constant: 16))
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 224))
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 36))
        // 4> 注册按钮
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: .Left, relatedBy: .Equal, toItem: messageLabel, attribute: .Left, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: .Top, relatedBy: .Equal, toItem: messageLabel, attribute: .Bottom, multiplier: 1.0, constant: 16))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 100))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 36))
        // 5> 登录按钮
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: .Right, relatedBy: .Equal, toItem: messageLabel, attribute: .Right, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: .Top, relatedBy: .Equal, toItem: messageLabel, attribute: .Bottom, multiplier: 1.0, constant: 16))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 100))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 36))
        
        
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[mask]-0-|", options: [], metrics: nil, views: ["mask": maskIconView]))
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[mask]-(btnHeight)-[regButton]", options: [], metrics: ["btnHeight": -36], views: ["mask": maskIconView, "regButton": registerButton]))
        
        // 设置背景颜色 - 灰度图 R = G = B，在 UI 元素中，大多数都使用灰度图，或者纯色图(安全色)
        backgroundColor = UIColor(white: 237.0 / 255.0, alpha: 1.0)

        
    }
    
    
}